Su Qingtang, a daughter-in-law of the Jokhang Dynasty, was killed by her parents for delivering news to a concubine who was framed by the queen. She was bullied in Yeting since she was a child, and learned to be ruthless and observant. Once, she stood up for a sister who was framed by Concubine Li and was thrown into the cold palace. However, she unexpectedly discovered a secret letter left by the late emperor, which exposed the queen's crime of colluding with foreign ministers. She used the secret letter to first bring down Concubine Li, and then exposed the queen's crimes to depose the emperor. Then, with her ruthlessness and wisdom, she was promoted step by step to the rank of concubine, imperial concubine, and finally the queen. However, the emperor Xiao Zhaoheng has been using her to eliminate the influence in the harem. After Su Qingtang found out, she designed to make the emperor lose the support of the people and support the prince to ascend to the throne and become the queen mother, with all the power in the world. In the process, she constantly used the enemy's methods to fight back, slapping the Queen, Concubine Li, the Queen Mother and other opponents in the face, which was very satisfying.